For the new IC-756PROIII, Icom’s combined the cutting-edge receiver technology
of the IC-7800 with the familiar ergonomics of the IC-756PROII.

Take your DXing to the next level with Icom’s IC-756PROIII.(*in the 14MHz band)

The 756PRO Third Generation’s Features

Receiver gives +30dBm third-order intercept point*

Using receiver design techniques introduced in the IC-7800, Icom’s engineering
team focused on producing a distortion-free, high-dynamic-range. To achieve this
goal, Icom used higher-grade components in vital receiver sections of the
IC- 756PROIII.* Under the condition of receive frequency 14.2MHz, input frequencies
14.3MHz and 14.4MHz, Pre-amp OFF, mode USB BW: 2.4kHz

Large inductors

The IC-756PROIII uses large inductors instead of small coils in the bandpass filter
(BPF) stage, because small coils sometimes cause magnetic saturation in the BPF
stage. Large inductors can handle both strong signals and weak signals with lower
distortion.

Low-distortion BPF switching

The BPF switching circuitry is one of the critical points in a receiver where distortion
can be produced by strong out-of-band signals. Distortion at this early receiver
stage then propagates throughout the remaining stages and cannot be removed by signal
processing. The IC-756PROIII uses low distortion diodes with wide frequency characteristics
that prevent formation of distortion components in the BPF stage.

Fundamental-type 64MHz roofing filter

The IC-756PROIII uses a fundamentalmode monolithic crystal filter
for the roofing filter. Although it’s more expensive than overtone-mode filters,
the fundamentalmode filter has a better shape factor and is less susceptible to
intermodulation distortion under strongsignal conditions. This is the same 15kHz
crystal filter used in the IC-7800 roofing filter circuit.

Two newly designed preamplifiers

To minimize distortion and maximize dynamic range, the IC-756PROIII preamplifiers
use the same basic circuit design as the IC-7800 preamplifiers. Preamp-1 is a noiseless
feedback design, with push-pull amplifiers. This design has a high intercept point
and covers a wide frequency range. Preamp-2, which uses bipolar transistors for
higher gain, is ideal when you use separate low-efficiency receiving antennas such
as small loops or Beverages.

Real time spectrum scope with mini scope function

The real time spectrum scope is now an indispensable tool for top performing HF
radios. The IC-756PROIII’s spectrum scope adds a mini scope function, as requested
by many PROII users. The mini scope allows you to monitor the scope screen while
you use other function menus. For example, you can monitor the scope screen even
while you are changing the IF filter shape and passband width. The scope range can
be set in 4 steps ±12.5 kHz, ±25 kHz, ±50 kHz and ±100
kHz, centered onthe receiving frequency. In addition, the spectrum scope has 3 attenuator
levels (10dB, 20dB and 30dB).

Eight-channel RTTY TX memory

The IC-756PROIII has 8 channels of RTTY transmit memory. You
can edit and send up to a 62 character message for each memory channel without a
PC or other external unit*. The transmit memory is displayed on the screen so you
won’t send the wrong message.
The built-in RTTY demodulator and decoder allow you to check the callsign of the
station on the air instantly. A PC or external unit is not also necessary.* When writing and sending RTTY messages on site, a Terminal
Unit, TNC or PC and dedicated software is required.

Adjustable SSB transmit BW

The
SSB transmit bandwidth is selectable from 100, 300 and 500Hz at the high-pass edge,
and 2500, 2700 and 2900Hz at the low-pass edge respectively. 3 types of high and
low combinations can be stored in the memory. In addition, the built-in audio equalizer
has separate bass and treble adjustments for a total of 121 combinations, so you
can tone your voice up or down as you want. With this flexible DSP-based waveform
shaping, you can tailor your transmit audio quality to suit your operating style.

Other new features

New 60 meter band coverage, equivalent transmit power and antenna tuner capabilities
to the other bands.
(U.S.A. version, USB mode only)

2 clocks show different time zones at once, such as local and UTC time

Inherited Properties From The 756PROII

32-bit floating point DSP & 24-bit AD/DA converters

The heart of the IC-756PROIII
is the proven combination of the 32-bit floating point DSP and 24-bit AD/DA converters.
This powerful combination supports many digital processing features exclusive to
the IC-756PROIII, which cannot be achieved with traditional analog processors. The
24- bit AD/DA converter has an ultra-wide dynamic range. The receiver delivers a
distortion- free, clear sound in any signal condition, from a weak signal to a strong
full power station.

AGC loop management

The digital IF filter and manual notch filter are included in the AGC loop driven
by the DSP. This architecture completely eliminates“AGC pumping” caused
by adjacent strong signals out of the IF filter passband. In addition, programmable
AGC time constants* (slow, medium, and fast
presets) give flexibility and speed needed for working the pile-ups.* Except FM mode.

Dual watch

The dual watch* function allows you to receive
2 signals on the same band simultaneously. You can listen to your favorite net while
keeping an eye or ear on the DX station. The signal strength balance between the
main and sub frequencies is adjustable from the balance knob.* Same band only

Digital twin PBT

DSP-based twin passband tuning (PBT) helps eliminate interference by changing the
IF filter bandwidth and/or shifting the center frequency. With the digital IF filters,
the PBT performance allows you to cut away all the interference and noise to hear
the actual signal. The LCD indicates the twin PBT conditions across the top of the
screen.

Manual notch function

An incredible 70dB of attenuation is at your command with the manual notch. Eliminate
strong adjacent signals or beat tone noise, without reducing the performance of
the AGC gain.

Sharp and soft filter shapes are selectable for SSB and CW mode

Select an appropriate filter shape that favors your operating style or band conditions.
Independent SSB and CW filter gives you the flexibility.

Sharp and soft filter shapes are selectable for SSB and CW mode

Select an appropriate filter shape that favors your operating style or band conditions.
Independent SSB and CW filter gives you the flexibility.

SSB Sharp Filter

The perfect filter shape factor when signal fidelity or pinpoint accuracy is needed!
A sharp slope from the filter edges gives full audio response while eliminating
any adjacent interference.

CW Sharp Filter

The “too good to be true” CW filter! The steep filter skirts —
only 200Hz from the –6dB to the –60dB points — allow you to hear
a weak CW signal that
is surrounded by strong ones.
DX hunters will have to try this one to really
see the magic of the Sharp CW filter.

SSB Soft Filter

The perfect filter shape factor when trying to pick out a weak signal! The rounded
filter shape resembles a traditional analog filter, by rolling off the high and
low ends of the passband. Although maintaining the steep filter skirt characteristics
of a digital filter, the soft filter increases the signal-to noise ratio of the
intended signal.

CW Soft Filter

Running a pile-up has become easier with the soft CW filter. By broadening the filter
skirt, the characteristics of the soft filter perform much like a mechanical filter
without the ringing.

Automatic notch function

Eliminate annoying AM carriers, amplifier or radio tune up interference with a push
of a button. The automatic notch tracks 2 or more interfering signals simultaneously
without intended signal loss or distortion. Very helpful on 80 and 160 meters.

Adjustable noise reduction

The 32-bit DSP processing power produces real results by separating signal components
from the noise with the variable Noise Reduction. By suppressing the noise components,
an outstanding Signalto- noise ratio is achieved, providing clear, clean audio in
all modes without distortion of the target signal.

Adjustable noise blanker

Digital voice recorder

The Digital Voice Recorder
(DVR) is a very convenient function for contests, DXpeditions and even normal operation.
Record your callsign, CQ, or other station information into four memory locations.
A total of 90 seconds is available for the four memories, with each memory channel
being soft partitioned to allow custom recording sizes. A quick push of the front-panel
DVR button allows you to record received signal into the R4 memory. The playback
automatically mutes the receiver for clear playback of the previous 15 seconds of
recorded audio. The perfect feature for those contest operators wanting to improve
their UBN.

CW memory keyer

A must have feature for the CW operator, the internal memory keyer provides 4 memories
for programming station information, calling CQ and callsign. Each memory has a
capacity of 55 characters, as well as other time saving functions such as automatic
automatic repeat, serial contest number autocounter, and morse cut number functions.

Digital RF speech compressor

The IC-756PROIII utilizes the 32-bit DSP for the RF speech compressor providing
the maximum punch without the fuzzy sound. Great for breaking through the noise
and hash to complete the QSO.

Highly stable transmitter

For a big, clear signal, the IC-756PROIII uses two 2SC5125 transistors in the PA
Unit. Along with superior IMD characteristics, these transistors have plenty of
power to allow for 100W full duty cycle operation. Advanced design considerations
along with an aluminum, die-cast frame, and large cooling fan, help to stabilize
the PA circuit providing full duty cycle operation.

High stability crystal unit

The IC-756PROIII incorporates a high-stability
master oscillator, providing ±0.5ppm (–10ºC to +50ºC). A
must for RTTY, SSTV or M A R S operation.

Triple band stacking register

Hop around the band with Icom’s exclusive triple band stacking registers.
Each band remembers the last 3 frequencies, mode and other settings used.

SSB data communication

When the IF filter passband is reduced to 500Hz or less in SSB/SSB data mode, special
bandpass filters are automatically selected. The BPF automatically sharpen for better
rejection of interfering signals. Along with the BPF, the IC-756PROIII automatically
turns off the compression and enables the 1/4-tuning step for easier operation and
more accurate tuning. Perfect for PSK31, SSTV or other AFSK modes.

5-inch TFT color LCD

Enjoy the full 5-inch TFT color display. The IC-756PROIII has 8 colors of display
settings and 7 types of font settings. Various information is indicated on the color
LCD, separated into an upper and lower screen. The lower screen can spread vertically
to increase the information viewing area.